Qatar Airways is seeking more than $600 million in compensation from Airbus over surface flaws on A350 jetliners, according to a court document shedding new light on an escalating business feud worth $4 million a day.

The Gulf carrier is also asking British judges to order France-based Airbus not to attempt to deliver any more of the jets until what it describes as a design defect has been fixed.

The two companies have been locked in a row for months over damage including blistered paint, cracked window frames or riveted areas and erosion of a layer of lightning protection.